Phys_Quiz 2: Projectile Motion

The initial horizontal velocity of a projectile is ____ its final horizontal velocity.

• less than

• equal to

• greater than

What is the velocity of an object launched straight up at its highest point?

• zero

• equal to its v_x

• ½ its maximum value

• equal to gravity

What is the horizontal acceleration of a projectile?

• 0 m/s²

• -9.8 m/s²

• Always changing

Tags

NGSS.HS-PS2-1

What is the vertical acceleration of a projectile?

• 0 m/s²

• -9.8 m/s²

• Always changing

Tags

NGSS.HS-PS2-1

A ball thrown straight up takes 8 total seconds to complete its journey all the way up and down. 1 second into its journey and 7 seconds into its journey the magnitude of its velocity will be ______________ and its direction _______________.

• opposite, the same

• the same, opposite

• the same, the same

• opposite, opposite

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-5

A basketball that is thrown to the ring follows a path that is ______________.

• hyperbolic

• parabolic

• linear

• circular

What happens to the horizontal velocity of a projectile as it travels along the curved path?

• increases

• decreases

• stays the same

• none of these

What happens to the vertical velocity of a projectile as it goes up?

• increases

• decreases

• stays the same

• none of these

Tags

NGSS.HS-PS2-4

The following quantities are important in the study of a projectile motion EXCEPT ______.

• speed of the projectile

• mass of the projectile

• height of release

• time covered

Tags

NGSS.MS-PS3-1

A skateboarder rolls off a bridge into the river as shown. If the skateboarder spent 0.79 s in the air, how far above the river is the edge of the bridge?

(Use an equation from your notes, the answer is rounded)

• 5.5 m

• 0.70 m

• 1.3 m

• 3.1 m

• 9.8 m

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4